Calculator v1 with react-bootstrap and styled-components

I have completed this challenge and I had faced some problems with how to organize the files in react project, specially how to organize files and the code related to styled-components, I have used react-bootstrap and styled-components in this app. I have implement stack data structure and used it to get the result of the math expression. I had faced some problems with the logic and the code related to it. Your feedback is so important for me and I need it so much.